A survey of near infrared nebulosities around luminous young stellar objects: J, H, and K ' imaging
文献类型：期刊论文
| 作者 | Ishii, M; Hirao, T; Nagashima, C; Nagata, T; Sato, S; Yao, YQ |
| 刊名 | ASTRONOMICAL JOURNAL
 |
| 出版日期 | 2002-07-01 |
| 卷号 | 124期号:1页码:430-444 |
| 关键词 | dust, extinction reflection nebulae stars : pre-main-sequence |
| ISSN号 | 0004-6256 |
| 英文摘要 | We present J, H, and K' images of 45 IRAS sources in the recent list by Campbell, Persson, & Matthews, which have been presumed to be luminous young stellar objects (YSOs) because of their infrared colors and their large IRAS fluxes. These objects have been classified into four groups according to two dust features in the 3 mum band the H(2)O ice absorption and the unidentified infrared band (UIB) emission. Our near-infrared images reveal that most of them (42/45) have nebulosity in at least one of the three bands. By examining the nebulosities around these YSOs, we find that (1) nebulae around the objects with the ice absorption can be explained by the scattered light of the central stars, (2) nebulae around the objects with the UIB emission cannot be explained by the scattered light alone additional emission, most likely from very small grains, is necessary to explain the nebular colors and the surface brightness, and (3) the objects with neither the ice absorption nor the UIB emission tend to have faint or no nebulosity. We interpret the variation of nebular brightness and the color as evolutionary phases of circumstellar matter of intermediate- to high-mass YSOs. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | HERBIG AE/BE STARS ; VISUAL REFLECTION NEBULAE ; IRAS POINT SOURCES ; MOLECULAR CLOUD ; FORMING REGIONS ; SOLAR CIRCLE ; EMISSION ; DUST ; BRIGHT ; CO |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176272900028 |
| 公开日期 | 2013-01-29 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/7817]  |
| 专题 | 紫金山天文台_毫米波和亚毫米波技术实验室 |
| 作者单位 | 1.Nagoya Univ, Dept Astrophys, Chikusa Ku, Nagoya, Aichi 4648602, Japan 2.Chinese Acad Sci, Natl Astron Observ, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ishii, M,Hirao, T,Nagashima, C,et al. A survey of near infrared nebulosities around luminous young stellar objects: J, H, and K ' imaging[J]. ASTRONOMICAL JOURNAL,2002,124(1):430-444. |
| APA | Ishii, M,Hirao, T,Nagashima, C,Nagata, T,Sato, S,&Yao, YQ.(2002).A survey of near infrared nebulosities around luminous young stellar objects: J, H, and K ' imaging.ASTRONOMICAL JOURNAL,124(1),430-444. |
| MLA | Ishii, M,et al."A survey of near infrared nebulosities around luminous young stellar objects: J, H, and K ' imaging".ASTRONOMICAL JOURNAL 124.1(2002):430-444. |
入库方式： OAI收割
来源：紫金山天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。